BUY 74LS273WM https://www.utsource.net/itm/p/1030787.html

Description: Octal D-Type Flip-Flop with 3-State Outputs Features: - Inputs Include Clamp Diodes - Outputs Source/Sink 24 mA - Outputs Can Be Tied Together for Bus Oriented Applications - Outputs Can Drive Up to 15 LSTTL Loads - Low Power Consumption, 80-μA Max ICC - Balanced Propagation Delay and Transition Times - Significantly Lower Power Than LSTTL Logic ICs - 100% Tested for Quiescent Current at 20V - Maximum Input Current of 1 μA at 18V Over Full Package Temperature Range; 100 nA at 18V and 25°C Applications: - Memory Address Registers - Data Storage Registers - Shift Registers - Data Bus Buffers - Data Selectors/Multiplexers (For reference only)